If you want to save a phrase, and then want to save a word within that phrase, the system will not highlight the individual word any longer. Saving a phrase is a good thing to do, but make sure you save any words you want within the phrase, and then save the whole phrase.
I am sure many of you already know this,but I thought I would mention it.
Saving the parts and then the whole is a good practice. This is especially the case for Chinese and Japanese where often the characters need to be learned, then the compound word, and then the phrase.